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Finding the Fourth Proportional to 248,370, 342,750.60 and 135,193.56

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Solution

The fourth proportional to 248,370, 342,750.60 and 135,193.56 is: 186,567.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,370 : 342,750.60 = 135,193.56 : x
  2. Step 2: Convert to fraction form
    248,370/342,750.60 = 135,193.56/x
  3. Step 3: Cross multiply
    248,370x = 342,750.60 × 135,193.56
  4. Step 4: Simplify right side
    248,370x = 46,337,673,806.14
  5. Step 5: Solve for x
    x = 46,337,673,806.14/248,370
  6. Step 6: Final answer
    x = 186,567.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.